Issues that were mentioned the first time around included world hunger and the hole in the ozone layer, and while some of the issues have improves slightly, humanity has fallen down in plenty of other areas.

New fears include the mass extinction of endangered animal species, rising greenhouse gasses and deforestation.

Donald Trump recently backed out of the Paris agreement in the belief that global warming is not a real threat and there is really no need to worry about air pollution given from vehicles and factories.

Some of the data that has recorded differences between the original warning and now include a 75.3 percent increase in the number of “dead zones”; a 62.1 percent increase in CO2 emissions per year; and 35.5 percent rise in the human population.

Proffessor at the College of Forestry at Oregon State University William Ripple who was heavily involved in the study said:

“Some people might be tempted to dismiss this evidence and think we are just being alarmist.

Scientists are in the business of analyzing data and looking at the long-term consequences. Those who signed this second warning aren’t just raising a false alarm. They are acknowledging the obvious signs that we are heading down an unsustainable path.”

Humans tend to show themselves up when it comes to environmental issues, although we are told time and again the damaged we are doing to the environment, if it’s not happening on our front step we can easily turn a blind eye, but these scientists have warned that we absolutely must take action now or it really will be too late.